Unless the power supply is a Class II double insulated device and there are no connections from any of your equipment to true ground, it is essential that all its exposed metal work is bonded to the mains ground with a connection that is very low impedance at mains frequency and capable of carrying the full rated current of the nearest fuse.
If you don't do this, in a fault situation you could get electrocuted because the chassis is at a large voltage compared with other exposed metalwork in the building. Top posted by list policy. Incidentally, this seems to be about an amateur radio topic, so it is on topic. Joe Planisky wrote: > > Should the negative side of a power supply be connected to the supply > chassis (and thus to the "green wire" AC ground), or should it be left > floating? I have heard arguments both for and against floating the -- David Woolley "we do not overly restrict the subject matter on the list, and we encourage postings on a wide range of amateur radio related topics" List Guidelines <http://www.elecraft.com/elecraft_list_guidelines.htm> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
